President Joe Biden speaks about border security in the Roosevelt Room of the White House, Thursday, Jan. 5, 2023, in Washington. Vice President Kamala Harris stands at left. (AP Photo/Patrick Semansky)

WASHINGTON (AP) — President Joe Biden says the U.S. will immediately begin turning away Cubans, Haitians and Nicaraguans who cross the border from Mexico illegally. It’s his boldest move yet to confront spiraling arrivals of migrants since he took office two years ago. The new rules expand on an existing effort to stop Venezuelans attempting to enter the U.S., which led to a dramatic drop in Venezuelans coming to the U.S. border. Together the changes represent a major revision to immigration rules that will stand even if the U.S. Supreme Court ends a Trump-era public health law that allows American authorities to turn away asylum seekers.